周星驰的大牌粉丝:做了一个网页,怎么随机读取图片?
来源:百度文库 编辑:高校问答 时间:2024/04/28 23:58:59
把如下代码加入<body>区域中
<SCRIPT language="JavaScript"><!--
today=new Date();
jran=today.getTime();
function rnd() {
ia=9301;
ic=49297;
im=233280;
jran = (jran*ia+ic) % im;
return jran/(im*1.0);
};
function rand(number) {
return Math.ceil(rnd()*number);
};
document.write("<CENTER>");
for(i=1;i<=1;i++) {
myNum=(rand(10)); //改成你要随机显示的图片数;
if(myNum == 1) document.write("<img src='back.jpg'>");
if(myNum == 2) document.write("<img src='j2.gif'>"); //图片路径,可用http://
if(myNum == 3) document.write("<img src='email.gif'>");
if(myNum == 4) document.write("<img src='arrow.gif'>");
if(myNum == 5) document.write("<img src='j2.gif'>");
if(myNum == 6) document.write("<img src='email.gif'>");
if(myNum == 7) document.write("<img src='arrow.gif'>");
if(myNum == 8) document.write("<img src='j2.gif'>");
if(myNum == 9) document.write("<img src='back.jpg'>");
if(myNum == 10) document.write("<img src='email.gif'>");
else {
document.write();
}
};
document.write("</CENTER>");
//-->
</SCRIPT>
用JS写
关注